1-Wire: fix doc

lib/onewire_master.h

@@ -103,8 +103,8 @@ bool onewire_master_function_write(uint8_t function, uint8_t* data, uint32_t bit
 /** device corresponding to a family code
  */
 struct onewire_family_code_t {
-	uint8_t code;
-	const char* device;
+	uint8_t code; /**< ROM ID code */
+	const char* device; /**< device name(s) */
 };
 
 /** list of possible devices corresponding to the family code